Home TOOLS BUILT BY THE TRADES© The only ruler on the market that can be used to scribe and measure all in one! is a product of DC Trade Tools™ TOOLS BUILT BY THE TRADES© DC Trade Tools™ is a distributor for V-Line Is a construction hand tool that makes framing Homes faster and easier! Durable! UniRuler™ is the first of its kind, the only ruler on the market that has the ability to scribe and measure all in one. Useful! UniRuler™ will not warp, chip or scratch, it’s unique center scribing holes allow you to make perfectly placed marks! Changing the “Rules” UniRuler™ is made of impact and chemically resistant material, Lightweight and durable Folds to a compact 6.75”inches.